Bio Of Paras
Bio Of Paras ENT 156
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This 18 page Class Notes was uploaded by Emerald Funk on Tuesday September 8, 2015. The Class Notes belongs to ENT 156 at University of California - Davis taught by Staff in Fall. Since its upload, it has received 35 views. For similar materials see /class/187643/ent-156-university-of-california-davis in Entomology at University of California - Davis.
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Date Created: 09/08/15
Entomology 156 Biology Of Parasites The Arthropod Parasites Lecture 7 R Klmsey The Advanced Parasitic Flies Tsetse Family Muscidae genus Glossina A General biology and life cycle 1 Similarto house y 2 Adults suck blood A General biology and life cycle 3 Larviparous females deposit fully developed larvae which pupate in soil B Important species groups 1 Glossina morsitans group transmits Tryganosoma brucei rhodesiense quotacute formquot a Savanna and thicket species b Feed on large suids and bovids and Bushbuck not humans B Important species groups 1 Glossina morsitans group transmits Tryganosoma brucei rhodesiense quotacute formquot B Important species groups 2 Glossina palpalis group transmits nganosoma brucei gambiense quotchronic formquot Riverside or lake shore water associated fringing forests 7 Feed on humans crocodiles and Bushbuck B Important species groups 2 Glossina palpalis group transmits Tmpanosoma brucei gambiense quotchronic formquot B Important species groups 3 Glossina fusca and Glossina tabaniformis groups a Forest species b Hippopotamus rhinoceros and suids C A 39ican sleeping sickness 1 Pathogens Family Trypanosomatidae G us Trmanosoma a Human trypanosomiasis T Lgambiense milder chronic form of disease rhodesiense acute form of ase b Salivarian trypanosomes transmitted in saliva ofGlossina the Tsetse 2 Epidemiology a Chronic quotGambianquot disease 39to human transmission 2 39 39 we tem y Den 3 Endemic focal transmission 4 Concentrated where human population coincides with river water points an forest cover 5 now lir nin k 39k39 2 Epidemiology b Severe quotRhodesianquot disease disease of game 1 Maintained in an enzootic cycle among game animals 2 Little chance oftransmission to ies from humans 3 Subject to epidemic out breaks b Severe quotRhodesianquot disease 2 Epidemiology c Control directed only at the fly 1 Indirect a Habitat destruction b Starvation by shooting all wild game 0 Control directed only at the fly 2 Direct a Capture b Biological control predation and parasitism c Reproduction inhibitors Chemosterilization Chromosomal manipulation or sterile male release d Insecticides ll Bots Warbles floor maggots A Bot flies and head maggots families Gastrophylidae and Oestridae 1 Life history parasitic larvae free living adult a Gastrophylidae stomach bot of equids elephants and rhinoceroses b Oestridae head maggots of sheep horses and deer c Resemble bees Oestridae the Nose bots 2 Example Gastroghilis intestinalis the orse bot 5 Eggs attached to hair of knees 5 Eggs hatch upon licking 0 Larvae penetrate tongue migrate to stomach and attach 0 Two molts pupate defecated D Nonfeeding adult emerges in 23 weeks Gastrophilidae the Horse bot fly B Warble ies family Cuterebridae the skin bots Parasites of rodents lagomorphs and marsupials quot Eggs laid on skin or hair 0 Larvae burrow under skin greatly enlarge 5 Molt exit skin pupate in soil Cuterebriidae the Warble flies C Louse Flies family Hippoboscidae 1 Louse like external parasites ofmammals and birds 2 Wingedwingless 3 Larviparous single larva at a time 4 Glue pupae to r or feathers Family Hippoboscidae the Louse ies Families Streblidae and Nycterbiidae D Family Calliphoridae the blow flies 1 Numerous forms cause myiasis D Family Calliphoridae the blow flies 2 Auchmeromyia utioa the Congo oor maggot a Blood sucking maggots of human b Eggs laid in huts c Larvae feed like bed bugs on sleeping humans Entomology 156 Biology Of Parasites The Arthropod Parasites Lecture 4 RB Kimsey The Insecta Lice and Bugs 1 A m gt Order Phthiraptera The lice A Introduction 1 Classification three major groups sometimes separated a Chewing lice Mallophaga b Sucking lice Anoplura c Elephant and Wart hog lice Rhynchophthira zsi 7 39 392 I Order Phthiraptera The lice 2 Distribution world wide on mammals and birds Inhabit the vestment of the host including hair feathers and clothing b Highly host specific parallel evolution with hosts a Order Phthiraptera The lice 3 Human species all sucking lice a Head lice in head hair b Body lice in clothing c Crab lice in axial hair Order Phthiraptera The lice 4 Morphology f a Dorsoventrally attened enda es for clinging to hair and B Biology and Life History 1 Complete life history on the host 2 Ametabolous metamor or incomplete or gradual phosis a Egg attached to hair or feathers nits I adult c d All stages feed similarly B Biology and Life History 3 Feeding specializations a Chewing lice chewing mouth parts 1 Laterally opposed mandibles Feed on surface skin debris oils etc B Biology and Life History b Sucking lice Anoplura 2 Feed by sucking blood from capillaries n In the epidermis ofthe ski B Biology and Life History 3 Feeding specializations c Elephant and Wart hog lice Rhynchophthira 1 Chewing sucking mouth parts at tip of long rostrum 2 Feed presumably on blood 3 Semipermanent ticklike attachment to host d Transmission from host to host through irect host contact ll Order Hemiptera True bugs incl bed and kissing bugs A Introduction 1 Hemimetabolous or incomplete life cycle a Egg hatches to wingless n mph b Several nymphal molts to winged adult c All stages feed on same materials Order Hemiptera True bugs incl bed and kissing bugs A Introduction 2 Piercing sucking mouth A parts within fascicle Order Hemiptera True bugs incl bed and kissing bugs A Introduction 3 Two pair wings first hemielytra second membranous Antennae Learnery proximal part s of hemielylron J Labrum Labium Proboscis Membranous distal part of hemielylron ll Order Hemiptera True bugs incl bed and kissing bugs A Introduction 4 symbiotic bacteria in mycetomes provId nutritional components not found in blood B The kissing bugs family Reduviidae T 39a ma Rhodinous etc 1 Morphology a Elongatednarrow cylindrical head b Piercing sucking mouth arts folded c Dark colored B The kissing bugs family Reduviidae Tnatoma Rhodinous etc 1 Morphology d Abdomen with thin margin extending out from under w39ngs e Hemielylra with three major veins in the posterior region B The kissing bugs family Reduviidae 2 Biology and Life history a Life cycle as for the order b Essentia lly vagile nest parasites living c Reach and infest new nests by ight B The kissing bugs family Reduviidae 3 Relationships with hosts a In general verywide host range b Several species peridomestic with mans c Other species associated with forest mammals d Transmit Tmpanosoma cruzi agent of Chaga39s disease e Woodrat nests in California C The bed bugs Cimicidae 1 Morphology a Dorsoventrally compressed 1438quot long Win less c Straw colored C The bed bugs Cimicidae 2 Biology and life cycle a Host specific nest parasites of birds humans and bats b Tend to parasitize colonial hosts swallows bats etc C The bed bugs Cimicidae 2 Biology and life cycle c Transmission to new hosts within colony nest or by phorisis to new colonies 1 Bat wing membranes 2 Human clothing D The bat bugs family Polytinidae 1 Morphology a Louse like b Reduced features no eyes or hind wings short fore wings Adaptations for clinging to host ctenidia attened spines 0 D The bat bugs family Polytinidae 2 Biology and Life history Entire life history on host All stages feed on blood Viviparous eggs hatch in female nymphs in advanced developmental state nu E Relationships with hosts among bug parasites 1 Increasing focus on host 2 Kissing bug free living loose association with nest 3 Bed bug not free living close association with nest 4 Bat bug louse like complete dependency on host F Bug bites medical signi cance to humans 1 Kissing bugs painless a Local swelling ache and irritation b Healing accompanied by itching c Occasionally anaphylaxis and death F Bug bites medical signi cance to humans 2 Assassin bugs and others very painful a Assassin bugs free living predators of other insects
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